Antarctic Ice Core Records of Oceanic Emissions: Sulfur, Bromine, Iodine, and Selenium

该奖项是为了支持一个为期三年的项目，以获得海洋来源元素硫、溴、碘和硒的大气沉积的长期记录。这项工作的主要重点是硫循环，因为它是大气中主要的气溶胶形成物种，在气候调节中具有潜在的重要性。沃斯托克和泰勒圆顶冰芯的样本将被分析用于这项研究。甲烷磺酸盐和非海盐硫酸盐的冰芯记录将被扩展到包括深Vostok冰芯中的两个完整的冰川旋回，并分析Vostok的浅干钻冰芯将允许识别这些参数的任何近期变化。对泰勒冰川冰芯的分析也将与沃斯托克进行比较。

This award is for support of a three year project to obtain a long term record of the atmospheric deposition of the marine-derived elements Sulfur, Bromine, Iodine, and Selenium. The principle focus of the work is on the sulfur cycle, because of its role as the major aerosol forming species in the atmosphere and its potential importance in climate regulation. Samples from the Vostok and Taylor Dome ice cores will be analyzed for this study. The ice core record of methansulfonate and non-seasalt sulfate will be extended to include two complete glacial cycles in the deep Vostok ice core and analyses of a shallow, dry drilled ice core from Vostok will allow the identification of any recent changes in these parameters. Analyses of the Taylor glacier ice core will also be made for comparison with Vostok.